Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Sonnet 5
94
Hy3 Preview
58
Pick Claude Sonnet 5 if you want the stronger benchmark profile. Hy3 Preview only becomes the better choice if you want the cheaper token bill.
Agentic
+27.4 difference
Coding
+3.2 difference
Knowledge
+10.7 difference
Claude Sonnet 5
Hy3 Preview
$3 / $15
$0 / $0
N/A
N/A
N/A
N/A
1M
256K
Pick Claude Sonnet 5 if you want the stronger benchmark profile. Hy3 Preview only becomes the better choice if you want the cheaper token bill.
Claude Sonnet 5 is clearly ahead on the provisional aggregate, 94 to 58. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Sonnet 5's sharpest advantage is in agentic, where it averages 81.8 against 54.4. The single biggest benchmark swing on the page is HLE, 57.4% to 25.5%.
Claude Sonnet 5 is also the more expensive model on tokens at $3.00 input / $15.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Hy3 Preview. That is roughly Infinityx on output cost alone. Claude Sonnet 5 gives you the larger context window at 1M, compared with 256K for Hy3 Preview.
Claude Sonnet 5 is ahead on BenchLM's provisional leaderboard, 94 to 58. The biggest single separator in this matchup is HLE, where the scores are 57.4% and 25.5%.
Claude Sonnet 5 has the edge for knowledge tasks in this comparison, averaging 57.4 versus 46.7. Inside this category, HLE is the benchmark that creates the most daylight between them.
Claude Sonnet 5 has the edge for coding in this comparison, averaging 63.2 versus 60. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Claude Sonnet 5 has the edge for agentic tasks in this comparison, averaging 81.8 versus 54.4. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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